Place four pebbles on the sand in the form of a square. Keep adding as few pebbles as necessary to double the area. How many extra pebbles are added each time?
How many moves does it take to swap over some red and blue frogs? Do you have a method?
What is the greatest number of counters you can place on the grid below without four of them lying at the corners of a square?
Some treasure has been hidden in a three-dimensional grid! Can you work out a strategy to find it as efficiently as possible?
The computer has made a rectangle and will tell you the number of spots it uses in total. Can you find out where the rectangle is?
How can we help students make sense of addition and subtraction of negative numbers?
In this article, Janine Davenall reflects on children's personalised mathematical recordings as part of a small research project based in her Reception class.
